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JPL Small-Body Database Browser
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312961 (1997 SG30)
Classification: Jupiter Trojan          SPK-ID: 2312961
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08132419044835675 6.0574e-08  
a 5.237882192617999 2.2953e-07 au
q 4.811915663639477 4.5005e-07 au
i 6.133759937223634 7.8567e-06 deg
node 18.92353303645849 6.1216e-05 deg
peri 64.08109149559571 9.7748e-05 deg
M 247.4574143605493 8.4913e-05 deg
tp 2459969.320196015085
(2023-Jan-24.82019602)
0.0010987 TDB
period 4378.567168734864
11.99
0.00028781
7.88e-07
d
yr
n .08221867705275326 5.4044e-09 deg/d
Q 5.663848721596522 2.482e-07 au
  Orbit Determination Parameters
   # obs. used (total)      168  
   data-arc span      8034 days (22.00 yr)  
   first obs. used      1997-09-30  
   last obs. used      2019-09-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58017  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 08:13:58  

Additional Information
 Earth MOID = 3.83343 au 
 Jupiter MOID = .120724 au 
 T_jup = 2.982 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.6   n/a MPO455307  

312961 (1997 SG30)          Discovered 1997-Sep-30 by Spacewatch at Kitt Peak
Reference: 20120207/Numbers.arcLast Updated: 2012-02-09

Alternate Designations
 1997 SG30 = 2008 QF42 = 2009 VK60 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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